Abstract: A booster seat has provisions for accomodating a child in a number of different height positions. The booster seat comprises an open-sided base and a seat piece. The open-sided base has a forward channel and a back channel in each of two side supports. A seat of vertically spaced substantially level ledges are found in the channels, vertically offset from one another. The seat piece has a forward protrusion and a back protrusion on each side edge. The protrusions are vertically offset a distance substantially equal to the offset distances between the ledges so that when the protrusions engage the ledges in the base, the seat piece is substantially horizontal and secured in the open-sided base.

Abstract: A portable playpen assembly comprises a frame assembly and a fabric enclosure. The frame assembly comprises a horizontally hinged bifold hub wherein each hinge half is capable of receiving a first end of a floor support bar. A set of frame members are provided wherein each frame member comprises a floor support bar, an enclosure support bar, a corner support casing with means for attachment thereto of a second end of the floor support bar and means for attachment thereto of the enclosure support bar which permits the enclosure support bar to swing from an upright position to a horizontal position, and latch means for holding the enclosure support bar in an upright position. The frame assembly is foldable to a compact unit. When in use, the frame assembly is capable of holding a fabric enclosure so as to provide a playpen assembly.